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Malware Analysis

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Analyzing Location-Based Malware with Geo Anonymization

Malware authors regularly create campaigns to target victims in specific countries. Recent examples using location-based malware include two campaigns that delivered banking trojans to customers of financial institutions in Brazil and the Danabot malware campaign that targeted users in Australia and Europe. Such attacks are often meticulously crafted. The phishing
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6 Best Practices for your Malware Sandbox Proof of Concept

Any time you incorporate a major new component—such as a sandbox platform—into your security ecosystem, it’s important to do a rigorous, side-by-side evaluation of competing products to determine the best choice for your situation. But a proof of concept is about more than detection rates and vendor scores. It’s also
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SANS Webcast Recap: Dissecting GandCrab Ransomware

GandCrab is one of the most prevalent ransomware families in 2018. In this post—condensed from a SANS webcast that he participated in— VMRay Product Manager Rohan Viegas discusses the fundamental techniques GandCrab uses to encrypt user’s files and basic detection methods that can provide the first line of defense against
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How Expel Gets Answers, Not Alerts

Using VMRay Analyzer to get a full picture of attacker activity Tyler Fornes, a Senior Security Analyst at Expel, explains how his team uses VMRay Analyzer to quickly analyze suspicious or malicious files that have been identified in a client’s environment. The most significant result: Investigation times can be cut

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How to Use Interactive Malware Analysis with VMRay Analyzer

[Editor’s Note: This post was updated on May 19th, 2020] In the daily war against malware authors, incident response teams (CIRTs) need a comprehensive yet versatile sandbox as part of their automated malware analysis process. This provides the performance, scalability, and accuracy needed to handle the onslaught of malware-related threats.
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Forgotten MS Office Features Used to Deliver Malware

According to Microsoft’s 2016 Threat Intelligence Report, 98% of Office-targeted threats use macros. So, shouldn’t we just focus our efforts on detecting threats that leverage macros? Of course not. Attackers will constantly innovate. Finding ways to bypass existing security solutions and making malware easy to execute are top of mind
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The Evolution of GandCrab Ransomware

[Editor’s Note: This post was updated on July 9th, 2018 with analysis of Gandcrab v4] Like legitimate commercial software, commercial malware also needs a viable business model. For ransomware, the most popular business model is now Ransomware-as-a-Service (RaaS). RaaS focuses on selling ransomware as an easy-to-use service, opening up a
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VMRay Malware Analysis Report Recap – February 2018

Welcome to the VMRay Malware Analysis Report Recap. Every month our Research Team provides a recap of the malware analysis reports posted to the VMRay Twitter account. This past February, our team analyzed Black Ruby ransomware, Cobalt Strike Beacon and a Javascript file attempting to detect VMs via the registry.

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VMRay Malware Analysis Report Recap – February 2018

VMRay Malware Analysis Report Recap – January 2018

Welcome to the VMRay Malware Analysis Report Recap. Every month our Research Team provides a recap of the malware analysis reports posted to the VMRay Twitter account. This past January, our team analyzed a variant of BigEyes/Lime ransomware, GandCrab ransomware and Lotus Blossom malspam. Click the links below to jump
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[Video] Analyzing a Payload Out of Context

[Video] Analyzing a Payload Out of Context

Malware authors have become creative with how they have chosen to package their payload to evade detection. Office documents have been used as a common vector of entry in the following way: a Word document uses a macro to launch PowerShell and download a malicious payload. While detonating the original
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